Dual Human Detection for Power-Efficient Operation Control
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Solution Overview
Problem
Existing devices for energy-saving modes in image forming apparatuses often face challenges in accurately detecting users to switch from low-power sleep modes to active modes, leading to inefficiencies in power consumption and potential erroneous detections.
Innovation Solution
The implementation of a dual human detecting system with a first detecting unit having a wide detection range and lower power consumption, and a second unit with a narrower range but higher power requirements, where the second unit is powered only when the first unit detects a person, allowing precise user detection and quick mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single detecting unit with wide detection range is used, then the detection range is wide, but the power consumption is high
Solution Approach 1:
The detecting unit is divided into two distinct detecting units: a first detecting unit with wide detection range and low power consumption, and a second detecting unit with narrow detection range and high power consumption. This segmentation allows the system to achieve wide detection coverage while minimizing overall power consumption by using only the appropriate detecting unit for each detection scenario.
Solution Approach 2:
The system dynamically switches between the first and second detecting units based on detection needs. The control unit activates the second detecting unit only when the first detecting unit detects a person, creating a dynamic adaptation that optimizes power consumption while maintaining detection effectiveness.
2Use of energy by moving object
If a single detecting unit with narrow detection range is used, then the power consumption is low, but the detection accuracy is insufficient
Solution Approach 1:
The detecting unit is divided into two distinct detecting units: a first detecting unit with wide detection range and low power consumption, and a second detecting unit with narrow detection range and high power consumption. This segmentation allows the system to achieve wide detection coverage while minimizing overall power consumption by using only the appropriate detecting unit for each detection scenario.
Solution Approach 2:
The first detecting unit acts as an intermediary that triggers the activation of the second detecting unit. When the first detecting unit detects a person, it mediates by activating the second detecting unit to perform more accurate detection, thus achieving high detection accuracy only when needed rather than continuously.
3Measurement precision
If the second detecting unit is always powered on, then the detection accuracy is high, but the power consumption increases
Solution Approach 1:
The first detecting unit performs preliminary detection in a wide area before activating the second detecting unit. This preliminary action ensures that the high-power second detecting unit is activated only when actually needed, preventing unnecessary power consumption while maintaining high detection accuracy when required.
Solution Approach 2:
The system dynamically switches between the first and second detecting units based on detection needs. The control unit activates the second detecting unit only when the first detecting unit detects a person, creating a dynamic adaptation that optimizes power consumption while maintaining detection effectiveness.
4Adaptability or versatility
If the detection range is widened, then more users can be detected, but the power consumption increases
Solution Approach 1:
The detecting unit is divided into two distinct detecting units: a first detecting unit with wide detection range and low power consumption, and a second detecting unit with narrow detection range and high power consumption. This segmentation allows the system to achieve wide detection coverage while minimizing overall power consumption by using only the appropriate detecting unit for each detection scenario.
Solution Approach 2:
The system changes the detection parameter (detection range) by switching between two detecting units with different characteristics. The control unit selects which detecting unit to activate based on the required detection coverage, allowing the system to adapt detection parameters dynamically to balance coverage and power consumption.
Data Source
AI summary
An operation device includes a first condition in which the operation device consumes a first amount of electric power; a second condition in which the operation device consumes a second amount of electric power; a first detecting unit, to which electric power is supplied in the second condition, having a first detection range and detecting a person in the first detection range; a second detecting unit having a second detection range and detecting the person in the second detection range; a transmitting section that transmits, when the person is detected by the first detecting unit in the second condition, the electric power required for the second detecting unit to detect the person to the second detecting unit; and an instructing section that instructs, when the person is detected by the second detecting unit, the operation device to change a condition from the second condition to the first condition.